Jo hit novek



rJol-IN Novas, 0F New YORKQNQ Letters Parent No. 77,832, ma May 12,1868.

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TO ALL WHOM IT MAY CONCERN:

Beit known that 'I, JOHN NOVEK, of New York, in tliecounty and State of New'York'," have 'invented Va new and improved Flour-Sifter; and `I do hereby declare that the following is a full, clear, andexact descriptionthereof, which will enable others skilled in the art to make and use the same, referencebeing had to the accom.

n panying drawings,` forming part ofthis specification.` I Y Y 7 I Figure 1 represents a planer top viewof' my improved oursifter. Y

Figure 2 is a vertical longitudinal section' of the same, taken on the plane of the line x x, l.

Figure 8 is a vertical transverse section of the same, taken ori-the plane ofthe line yy, iig. 2.

Similar letters of reference indicate corresponding parts. i

This invention relates to a new Lilou-sitter, to be especially used by bakers, its object being to facilitate the process of sifting vthe flour, and to 'ecnomiae labor. i Y

The invention consists, first, in a. novel device for vibrating a sieve, said device consisting of an oscillating# lever, to which, by means of a rotating cam or cams, andy by a counteracting spring, the neeessarymotion is imparted. l

The invention consists, second, in arranging above the sieve, in a stationary frame, a suitable suppor'tfor 5 holding a ilonr-barrel in an inclined position, so that the flour` can be fed from the barrel upon the sieve.'

A, in the drawing, represents-'a `fixed or portable frame, of suitable dimensions, shape, and material. In two horizontal bars, a a, vof this frame, are the bearings for an upright spindle, B,V on which a'series ofproject ing cams or lufgs, b is'arranged,` vo'r but one cam, as may be desired. A pinion, c, mounted en the 'spindle B, meshes into the teeth of a toothed wheel, el, that is mounted ona horizontalshaft, C, as shown. To the shaft C is, either by handler otherwise, 'imparted rotary motion,such motion'being consequently transferred to the spindle B. l i

i Dis a lever, pivoted by a pin, le', to the" frame A, and held. by a pin,f, projecting froma lever, E, with one end against the cam` portion of .the spindle B, asin iig. 1,; vThe lever E is, at one end, pivotedta a lever, F, which 'is by a pin, g, pivoted to the frame A. A spring, G, presses against .the free end ofthe lever Eand moves it forward, thereby also keepingthe lever' D against the cams b. Now, as the spindle B is rotated, it camswill throw the end of the lever D forward.' The other end of the-lever D will, by this motion, mcve the pinf, and with it the lever E, backw'ard against the spring Gr, andthe lever Ewill carry its end of the leverjF also backward with it. As soon as a cam ceases to act on D,`tl1c spring Gwill throw the lever E forward again, and` the end of the lever F, connected with E, will 'thus'also be moved forward again, and in this manner oscil- -lating motion is'imparted to the lever F, which oscillating motion can be made more or less quick, by varying the velocity of the spindle B, and'bythe number of cams, b, on the same.

The free end of the lever F is secured to ya sieve,H, which rests loose on the frame A, and to \\'hich,\by the oscillation of the lever F, shaking motion is imparted. v

The flour to be sifted is placed into the sieve in any suitable manner, but Iwould lprefer `to `support the barrel from which the flour is taken above the sieve, in. an inclined position. For this purpose I arrange b aords,

I I, set on edge-above the sieve, said boards being'rigidly fastened to the frame A In the upper edges of the boards are arranged cavities, as indicated in iig. 3, sro thata `,barrel can, on these boards I, and in the cavities arranged therein, be supported in `an inclined position above the sieve, as is show n by red lines in the drawings, The ilour is thus fed from the barrel directly to thesieve, and the operation of sifting is greatly simplified. l

I claim as new, and desire to secure by Letters Iatent- 1. A ilour-sifter consisting of the rotating camshaft B, levers D, E, and F, and spring G, in combination with the sieve H, all made and operating substantially as herein shown and described, for the purpose specified.

2. In combination with the above, the support or supports I, so arranged as to hold a barrel in an inclined position above the sieve, substantially as herein shown and described, for the purpose specified.

` i JOHN NOVEK.

Witnesses:

WM. F. MCNAMARA, ALEX. .F. Rosnnrs. 

